You probably don't have the BIOS boot sequence set correctly.
It should have at the top of the HDD sequence, whichever HDD contains partition F (seen from W8).
The boot drive referred to by EasyBCD is the location of the boot files.
Unfortunately neither W7 nor W8 do what XP and Vista did when you install them, i.e. put the boot files in the C disk with everything else.
Unless (like me) you take pains to force W7/8 to behave like XP/Vista, it will create a separate partition just for the boot files.
That's what EasyBCD is pointing to.
Confusingly, MS does not use the words boot and system in the same sense as the rest of the universe.
Disk Management flags have the following meanings
"boot" = "this is the system you're running"
"system" = "this is where I found the boot files for the currently running system"
"active" (on the first HDD in the BIOS boot sequence) = "this is where I started the search for the boot files"
"active" (on subsequent HDDs in the BIOS boot sequence) ="this is where I will look if I don't find something in the MBR on the first HDD"
So EasyBCD's "Boot Drive" will be the one you see labelled "system" in W8's Disk Management screen, and that should be "active" and at the top of the BIOS HDD boot sequence.
Then you won't need the DVD in the tray.